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Another alignment bogon.

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This commit is contained in:
Brian Somers 1999-03-31 13:33:43 +00:00
parent b31d9a1d23
commit d3b121132a
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=45185
1 changed files with 7 additions and 3 deletions
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10
usr.sbin/ppp/slcompress.c
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@ -17,7 +17,7 @@
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
*
* $Id: slcompress.c,v 1.21 1999/01/28 01:56:34 brian Exp $
* $Id: slcompress.c,v 1.22 1999/03/30 07:57:22 brian Exp $
*
* Van Jacobson (van@helios.ee.lbl.gov), Dec 31, 1989:
* - Initial distribution.
@ -551,13 +551,17 @@ sl_uncompress_tcp(u_char ** bufp, int len, u_int type, struct slcompress *comp,
/* recompute the ip header checksum */
{
register u_short *bp = (u_short *)&cs->cs_ip;
register u_short sum, *bp = (u_short *)&cs->cs_ip;
for (changes = 0; hlen > 0; hlen -= 2)
changes += *bp++;
changes = (changes & 0xffff) + (changes >> 16);
changes = (changes & 0xffff) + (changes >> 16);
((struct ip *) cp)->ip_sum = ~changes;
/* Watch out for alighment problems.... */
sum = ~changes;
bp = &((struct ip *)cp)->ip_sum;
memcpy(bp, &sum, sizeof *bp);
}
return (len);
bad: